Information on differentia
Differentiae are written after each antiphon and were identified in the original Cantus index by their last note and a numeral to distinguish between differentiae that end on the same pitch within the same mode. The Cantus index was incomplete at the time of the manuscript's addition to the Differentiae Database, so its tonary will need to be updated accordingly.
Swanson, Barbara. Inventory of Ms. University of Sydney. Library. Rare Book and Special Collections Library. Add. Ms. 376. In: Cantus Manuscript Database for Latin Ecclesiastical Chant: Inventories of Chant Sources. Directed by Debra Lacoste (2011-), Terence Bailey (1997-2010), and Ruth Steiner (1987-1996). Web developer, Jan Kolácek (2011-).
Images: Marian Antiphonal, Add.Ms. 376 Deane, The University of Sydney